Monday: University of Rochester psychologist Ilan Dar-Nimrod talks about his recent research on what it means to be "cool" now.  American designer, artist, writer, and personality Gloria Vanderbilt on her life in the arts. 30-year-old Canadian actor Taylor Kitsch.

Tuesday:  A look at why dirty vegetables are good for you. Zambian-born Scottish soul singer-songwriter Emeli Sande. A look at the psychological condition dubbed Paris Syndrome. Cartoonist and graphic novelist Guy Delisle.

Wednesday:  Director Sarah Polley on her film, Take This Waltz. Musician Peter Gabriel on his latest collection, New Blood.

Thursday: Wikipedia's Jimmy Wales explains why he's mounted a petition in support of a young British man facing extradition to the US and copyright charges. Astrophysicist, director of the Hayden Planetarium, and popularizer of science, Neil Degrasse Tyson. Musicians -- and sisters -- Tegan & Sara on their live CD/DVD combination Get Along.

Friday: Mitch Winehouse, father of the late U.K. singer Amy Winehouse, talks about his memoir, Amy. Activist Chaz Bono on current media images of transgender people.

Audio is available the day following the broadcast.